Apparatus for applying heat and air in dental work



4July 30, 1929.

.1. H. KAPLAN Tus Fon APPLYING HEAT AND AIR 1N DENTAL worm ,2 Sheets-Sheet 1 "APPARA Filed Dec. 17, 1925 July 30, 1929. J. H. KAPLAN v 1,722,377

APPARATUS FOR APPLYING HEAT AND AIR IN DENTAL WORK Filed Dec.' 17, 1925 2 Sheets-Sheet 2 Patented July 30, l929.

'T ACB II. KAPLAN, 0F CHICAGO, ILLNOIS.

Application led Decemberl?, 1925.

It is well known thatpin dentistry it is necessary to resort to the application of heat and air, the heat generally Abeing supplied by means of a gas or alcohol flame while the air has usually been supplied by being blownfrom a pipe one end of which is placed in the mouth of the operator.

`While some good results have been obtained in this manner it has been found that many objections and diliiculties present themselves, especially with work which is of such a nature that all of the attention of the operator is required upon the work.

In Jthe use of modeling or impression compound and in other instances' it is sometimes desirable or necessary to employ an intermittent blast and at other times a constant or continuous blast is necessary, accordingl to the nature of the work.

Vf ith the present methods it necessitates considerable experience before one can become expert in controlling such blast to produce the desired heat, when a flame is used, and to control and localize the heat. @ftentimes, especially when the application of a continuous blast of heat is required, the work is spoiled by reason of the fact that the operator must catch his breathto continue the operation of blowing.

Furthermore the blast will be uncertain and irregular as the proper amount of air will not be supplied in proportion to the flame',V

resulting in the production of a flame which is too hot, which injures or reduces the working qualities of the impression material consequently the quality of the work as it is impossible to regulate the blast with the application of air blown from the mouth of the operator, all of which is disconcerting and imposes upon the operator an extra task of watching and trying to control the flame.

In chip blowing or in the application of a liquid cleansing compound, suction is'very objectionable in that the impurities are redelivered bacl; to the work or field of operation.

Other apparatus have been designed for this class of work but they have been of a large and unwieldly nature rendering it difficult andcumbersome for the operator to handle or manipulate the same.

It is one of the objects of the present inven- Scrial No. 75,970.

tion to overcome these and many other objections and diculties encountered in the methods and apparatus now employed, and to provide in an improved apparatus for applying a blast of heat or of fluid, means whereby 1t is possible to secure a sustained or an intermittent blast at the election of the operator, suitable for use in dental work of any nature where such a blast is necessary or desirable, ancl which apparatus will be of a compact construction and arrangement easily to be handledvand which will also be effective and efficient in operation.

A further object is to provide in an apparatus of this character improved means whereby a supply of fluid for cleansing or for other operations may be produced without danger of regurgitation.

A. still further obj ect is to provide an improved hand apparatus of this character including means whereby a sustained blast may be produced in places where desired-and where the convenience of fluid pressure creating apparatus is not available, thereby providing all of the conveniences of work with a fluid pressure, without involving the necessity of installing an expensive fluid pressure creating apparatus. i

To the attainment of these ends and the accomplishment of other newA and useful objects as will appear, the invention consists in the features of novelty in substantially the construction, combination and arrangementV of the several parts, hereinafter more fully described and claimed and shown in the accompanying drawings illustrating this invention and in which; e

Figure l is an elevation of a chip blowing apparatus arranged so as to produce either an intermittent or sustained blast.

Figure 2 is an enlarged detail sectional view taken on line 15-15, Figure 1.

Figure 3 is a view of a hand apparatus used in connection with a burner of another type arranged to produce either an intermittent or sustained blast.

Figure 4 is a view in elevation showing another form of apparatus of this character arranged to produce either a sustained or an intermittent blast.

Figure 5 is a top plan view of a Bunsen -into the nozzle 21 and connected with this fuel the fluid is discharged whenI the bulb `is deflated.

The bulb in this form ofthe invention is into the chamber through the inlet 40 when the chamberlis inflated, to be discharged into preferably mounted up on av supporting base n i s 23 having a tubular upright 24 which has com- Vmunication with the inside of the bulb 20.

An inlet 25 is provided for supplying -fluid to the bulb.

A fuel pipe 26 is provided which discharges lpipe is a flexible supply pipe 27 which receives its fuel supply from any suitable source (notl larly Figure-5), is -providedl with an inlet pipe 29 to which is connected asupplypipe 30. The pipe 29 is provided with a valve 31 for controlling the supply of fuel to the burner, and the pipe 29 is provided with branches 32, 33 respectively providedv therein with valves 34, 35.

The pipe 27 'is preferably `connected to one of the extensions or branches of the pipe 29, such as the branch 32, so that the burner 28 may be used at the same time that the nozzle 21 is being used, without interfering with the operation of one with respectto thefother.

In use the valve 34 is opened so as tosupply fuel to the pipe 26'and the fuel is ignited at the end of the nozzle 21.

By manipulating the nozzle the-flame may be directed against any part of the work-to be operated upon, and bydefiating the bulb 20 and allowing the same to be inflated, there will be an intermittent blast of fluid discharged through the pipe 22 against the flame.

An additional bulb-like member 38 is interposed between the bulb-like member 2O and the nozzle 21 and pipes 26 for the purpose of producing a sustainedblast of-fluid so as to provide a sustained blast against the work.

The pipe 22 has communication with the interior of the bulb-like member 38, and these two devices will constitute Huid chambers having communication 'with each other through a connection 39.

The chambers 2OL and'38 (see particularly Figure 2) are each provided with an inlet port 4() through which the fluid enters the chamber and communicating with this port `-and disposed within the chamber 20, is a tubular member 41 having a valve 42 disposed therein, and which valve co-operates with a seat 43. Another tubular member 44 is arranged within the chamber 2O and projects through the opposite end of the bulb to form a connection 39 between the chambers. The member 44 telescopes with the member 41 and may be secured thereto in any suitable manner lsuch as by means of screw threads 46. The

end ofthe vtubular member 44 serves as a means for preventing displacement of the v. valve 40.

The tubular member 44 is provided with openings 47 to permit tliefluid which is drawn the tubular member v44fand out of the outlet 45, when the wall oftheehamber is compressed todeflate the same.

As kshown in Figure 2fthe chambers 20 and 38 are coupled together by linserting thereonnection 39 of the `chamber 2O into the inlet opening 40 of the chamberl 38.

rThe extremity 48 o-f the tubularmember 44 of the chamber 38 which projectsjbeyond' the chamber, telescopes vinto the end ofthe pipe 22.

liith this arrangement the bulb-like device 2O is adapted to be .deflated and inflated to discharge the fluid therefrom into the chambery 38 and when inflated will draw` fluid through thev inlet 40. The valve 42'in the chamber 2O is seated when thechamber Walls ,are compressed to deflate the vchamber and `unseated topermit'inflation of the cham- ;ber 20.

vand deflating thev chamber 20 by compressing the wallsof the chamber with the hand and then releasing the same, a vpumping action will be produced which will pump the fluid Y -into the chamber 38 causing the latter to serve as a reservoir from which the fluid willl flow nto the pipe 22 with a'continuous and-steady Should it bedesired, however, to produce for any interval of time an intermitent flame, the operator may simply grasp the chamber 38 andimpart apumping action tothe chamber wall.v A ball like-projection 56 may be provided and carried by the ,bas/e157' for holding theapparatus steady.

In Figure 3 there is shown an arrangement of apparatus' embodyingthe bulb-like chambers 20 and 38which are superposed inthe same manner as in Figure 4, but in this form of the invention, the' flame is produced from an alcohol lamp 82.? Thelamprmay be supported by means Of a suitable tubular projection 83, carried by the chamber 38, preferably by the end 48 ofthe tubular member 44 of the bulb orchamber `38Atelescoping into 83 is a pipe 84 which terminates in a nozzle 85 arranged to direct this blast against the flame 86 sustained by means of a wick carried by the tube 87.

rlhe lamp may be provided with a ball-lille projection 88 with which a suitable clamp co-operates to hold the lamp in a fixed positien.

The operation of this form of the invention is the same as the form shown in Figure 4, that is, by manipulating the bulb-like chamber 20, fluid will be supplied to the chamber 38, which latter forms a reservoir, and the fluid will pass through the chamber into and through the pipe 84 to the nozzle 85 to be discharged against the flame 86.

In Figure l there is shown a form of the apparatus for chip blowing or for washing or cleansing work, by directing a blast of fluid against the work, either intermittently or continuously, and when used as such, the arrangement of the parts as shown will prevent drawing the fluid back byl suction.

In this arrangement the chambers Q0 and 38 are superposed and connected with the base 23 in the same manner as shown in Figures 3 and 4 and the nozzle 91 is preferably provided with a removable needle 92 connected thereto for producing a fine stream.

By deflating and inflating the chamber 2O the fluid will be supplied to the reservoir chamber 38 and from there through the pipe 93 to the nozzle in a steady stream. If desired and by manipulating the chamber 38 an intermittent stream will be produced.

With the form of the invention shown in Figure l the operator may, if desired, heat the nozzle 91 by means of the burner 28, so as to raise the temperature of the fluid being discharged from the nozzle.

`With this invention it will be manifest that there is produced an apparatus for Idental work and for analogous uses which will be universal in this nature in that it is adapted, especially in dentistry, to all of the uses for which such an apparatus is employed in such a profession. Furthermore the apparatus will be of' a compact nature and will be of a size that it may be readily handled and can be operated without th-e necessity of detractingl the attention of the operator from his worl. The collapsible and inflatable bulb serves as a handle for holding the apparatus and at the same time the bulb may be deflated and inflated so that only one hand of the operator is necessary for holding the apparatus and for deflating the hub.

Vhile the preferred forni of the invention has been herein shown and described, it is to be understood that various changes may be made in the details of construction and in the combination and arrangement of the several parts, within the scope of the claims,

without departing from the spirit of this invention.

.l/Vhat is claimed as new is:

l. A prosthetic lamp embodying means for sustaining a flame, a nozzle disposed adjacent the end of the flame sustaining means, means for supplying a sustained flow of fluid under pressure to the nozzle, the last said means including two inflatable and deflatable fluid receiving chambers having communication with each other, valve mechanism for controlling the passage of the fluid from one of the chambers to the other chamber, one of' said chambers serving as a reservoir for compress-ed fluid supplied thereto by deiiating the other chamber, and rigid means forming a connection between the said inflatable and deflatable chambers .for maintaining them against bodily deflection one with respect to the other and for supporting one of said chambers above the other and whereby one of said chambers will serve as a handle to bodily lift the lamp and hold the same supported in position for use by the same hand of the operator which collapses the chamber.

2. A. prosthetic lamp embodying means for sustaining a flame, a nozzle disposed adjacent the end of the flame sustaining means, means for supplying a sustained flow of fluid under pressure to the nozzle, the last said means including two inflatable and deflatable fluid receiving chambers having communication with each other, valve mechanism for controlling the passage of the fluid from one of the chambers to the other chamber, one of said chambers serving as a reservoir for compressed fluid supplied thereto by deflating the other chamber, rigid means forming a connection between the said inflatable and deflatable chambers for maintaining them against bodily deflection one with respect to the other and for supporting one of said chambers above the other and whereby one of said chambers will serve as a handle to bodily lift the lamp and hold the same supported in position for use by the same hand of the operator which collapses the chamber, and a supporting base upon which the said chambers are mounted.

3. A prosthetic lamp embodying means for sustaining a flame, a nozzle disposed adjacent the end of the flame sustaining means, means for supplying a sustained flow of fluid under pressure to the nozzle, the last said means including two inflatable and deflatable fluid receiving chambers having communication with each other, valve mechanism for controlling the passage of the fluid from one of the chambers to the other chamber, one of said chambers serving as a reservoir for compressed fluid supplied thereto by ydeflating the other chamber, rigid means forming a connection between the said inflatable and deflatable chambers for maintaining them llO against bodily deflection one With respect to the 4other and for supporting one of said chambers above the other and whereby either one of said chambers will serve as a handle to lift the lamp and hol-d lit in position for use by the same hand of the operator which collapses the chamber, and a supporting` base upon Which both chambers are mounted, said base-maintaining the ychambers in an upright position and superposed.

Inl testimony whereof Ihave signed my name to this specification, on this 16th day of December, A; D. 1925.

, JACOB H. KAPLAN. 

